Method and apparatus for accessing a foreign network with an obfuscated mobile device user identity

摘要: A mobile device identifier (such as an MSISDN) that typically accompanies a request is replaced with 'enriched' exposes the user's home operator but obfuscates device's (and, thus, user's) identity. In one embodiment, comprises first part, and second part. The part data string identifies (either directly or through database lookup) operator. however, opaque string, such one-time-use unique (UID) value otherwise derived function of MSISDN (or like). encodes identity in manner preferably can be recovered only by entity authorized thereby). When user roams into foreign network, network receives enriched lieu MSISDN. uses to identify e.g., determine whether permit requested access provide some other value-added service). cannot decode part; (as well user) remains obscured. This ensures privacy maintained, while preventing third parties from building profile based on requests include similar identifier.